Help pls dont answer if you don’t know also I’ll give brainliest

Which of the following could be the graph of the equation y = -2x + 5

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Can any one me with the answers to these questions asap?